Distillation apparatus



y June 9, 1325'.

R. M. KELLY DISTILLATION APFARATUS 1920 2 Sheets-Sheet Filed Aug. 'i

DEPHLEGMR TOR DNVENTOH STILL COL UMN Liang WITNESS June 9, 1925. 1,541,227

R. M. KELLY DISTILLATI ON APYARATUS HEFLUXING RETURN PIPE J WITNESS r INVENTOR Patented June 9, 1925.

UNITED STATES PATENT OFFICE.

RAYMOND M. KELLY, or PITTSBURGH, PENNsYLvANIA.ssrGNoaiTo THE Kom-Ens COMPANY, or PITTSBURGH, PENNSYLVANIA, A conPoBATIoN or PENNSYLVAIUA.

DISTILLATION APPARATUS.

Application filed August 7, 1926. Serial No. 401,832.

fo all whom z't may concern:

Be it known that I, RAYMOND M. KELLY, a citizen of the United States,r residing at Pittsburgh, in the count)I of Allegheny and State of Pennsylvania, have invented a new and useful I -.iprovement in Distillntion Appafratus, of which the following is u full, clear, and exact description.

The present invention relates broadly to distillation. apparatus, and more particularly to apparatus of this character for making pure or mixed distillates `from washed benzol.

The principal object of the present invention .is to provide a distillation apparatus comprising a still, and a dephlegmator with improved means for decreasing operating expense and increasing the period of use of the apparatus.

Another object of the invention is to provide an apparatus of this type with means for by-passing the vapors from the still co umn around the dephlegmator when mixed distillates are being made, to thereby avoid undue wear on the dephlegmator.

Still another object of the `invention is to accomplish such by-passing of the vaporsby means of a separable section having permanent deflecting means therein dividing the interior into independent chambers having exterior communicating connections.

.A still further object of thc invention is to provide means for insuring the return of the condensates from the dephlegmator.

The foregoing and other objects, together with their attendant advantages, will be apparent asA the invention becomes better understoodby reference to the accompanying Specification and drawings forming a part thereof, it being premised that changes may be made in the various details and thc Inanner of operation within the scope of theany one skilled in this art, the usual modern benzol still is provided with a retort in which the primary" `vaporization of the charge takes place and a fractionating co1- uuin in ivhich some separation of the more apparatus. At the saine time, it is dsirable to provide means for readily conducting the vapors through the de hlegmator Wihen it is desired to make pure enzine, toluene and i the like.

Referring more particularly to the drawings, there is illustrated the upper` part of a distilling apparatus. The retort,portion of the still is not shown, and reference numeral'2 indicates the fraetionating constructed in sections, as is custoniary in making the columns of benzol stills. VThe top of the column is rovided with a connectin; r section 4. he dephlegmator 5 which is of the usual construction employed 1in benzol-distilling apparatus, is carried and vsupported on the top of the still column. A

se arable section 7 is interposed between the sti l column 2 and theV dephlegmator 5, the separable section 7 being carried on the connecting section 4 of the still column and su -f porting the dephlegmator through a ephlegmator-supporting section 8. The section 'T is made separable, so that it may be applied to the usual benzol stills, which as now constructed, have the dephlegmator supported directly on top ofthe still column.

A bypass 6 is provided around the dephlegmator. The apparatus is arranged so that the vapors rising throu h the still column may be conducted eit er through the dephlegmntor 5 or around the dephlegmator through the bypass 6.

While the dephlegmator may be of any desired construction, it is illustrated as the standard dephlegmntor for benzol-distilling apparatus, provided with the usual pipes 9 mater, ciimposi'tion of the vapors from the still maf' wbe evlily Vcontrolled'so that let 11 for subsequent condensation. The section 7 is preferably provided with an 1nclined partition 12 extending entlrely across the passagewa through the sectlon'to divide the interior t ereof into upper and lower chambers 14 and* 15, respectively. A pipe 1'6'coinmunieates at one end'with-the lower chamber 15 .and at its other end with the ,by-pass. 6, and a second pipe 17 extends from the by-pass into the upper chamber 14. .This second pipeA is preferably provlded with a control valve 18 andthe by-pass 6 and dephleginator outlet 11 may also be respeo4 tively provided with similar valves 19 w20- From the foregoing description 1 t will be apparent, that with the apparatus m operatiiisA if the valves 18 and 20 are open and the valve 19 closed, the. vapors will be conducted' from the` Still column into the lower i `chalnber'l and thence through the pipes 16 and 17, respectively, into the 4upper chamber 14 communicating directly Wlth the -dphlegmaton These vapors having been Aacted' upon by the dephlegmator, will pass through the outlet 11 to a suitable condensing apparatus for the making of pure products.

On' the other-hand, if it is desired to form mixed distillates, Athe ,valves `18 and 2() are closedfand the valve 191 opened so that the veporsifrom, the colunmare conducted from .the lower chamber 15 through the pipe 16 directly4 into ythe dephlegmator by-pass. By

treason of'this operation, wear on the dephlegmator durn the making ot? mixed distill'tes is entire y elimlnated.

The iinclinationgiven to the partition l2 has been found desirable as it tends to con- .duct some of the condensates from the dephlegmator backinto the still column. A

.supplemental means for .this purpose is preferably provided, however', and is illustrated as comprising a return pipe 2l communicatuiting.'A with "ii suitable trap 22 in the dephleg'- mater"upportingsection 5, and sealed at its other end in thee'pipe 24. From this pipe the condensates enter one of the sections of the still column through a connection 25. The advantages of the present invention :irisefrom a construction in which excessive wear on the deplegmator is eliminated, and in which the luy-passing of the vapors around the dcphleginator is accomplished by an intermediate solid partition whereby .the me of internal valves in the ntermedmte section is eliminated.

,i urther advantage resides in the removable nature of the intermediates en whereby the standard distillingppr .11sA as Ynow manufactured may bei-' equipped with the improvements d The term partition es usedin Y i is definitive of any Iwall, closure oii ect Y ing plate functioning to prevent the through passage of vapors.

l claim: l. .i distillation apparatus comprising a ,still -olnnin, zi dephlcgniator providedwith means for circulating a coolinglhcrcthrongh, a del'ihleginator byp. movable section between the still l, Y, :1nd llclihlegmator serving to supp'd "the dcphlegmator on the still column, apjatrti` tion extending transversely in said'sel'io'n dividing the interior thereof into independcnt chambers, and pipe connections tetheremovablc section for conductingvthe vapors from the still column either aroundfttjicpartit-ion into the `dephlegrnator or the dephlegmator bypass, Substantially its 'described. 'i' A distillation apparatus com jre. i still column, a depliwlegmator provid means for circulating a cooling therethrough, a dephlegmator Vhype movable section between the still 3,01*l r dcphlegmutor serving to support",ifevk phlegmator on the still column, a. -pxjtt'ion cxtending transversely of said Sect fnfdfjviding the interior thereof into indeM i i chambers, and. piping connections eter g the chambers on oppositesides f'tipart tion and arranged for conducting tlietivpes from'the still column either aroundftl ptn?- tition into the dephlegmator orxintethe; phleginator bypass, substantially-flied scribed. ,A

3. A. distillation apparatus, compr 1 still column, udeph leltrinator providiwi means for circulating a cool-ing -ii'n'dill4 therethrough, a dcphlegmator bypsyia: movable section between .the stillf and dephleginator' serving tov support-` dephlegmator on the still co1umn,jar;p tition extending transversely of siiiduseot Y J dividing the interior thereof into indpeld cnt chambers, and piping conneettonsien'f" teringr the chambers on o posite sides-pf the partition und arranged) for conducting the vapors from the Istill column either around the partition into the dephlegmbor -2 or into the dephlegmator bypass said p1 i-ng l o connections serving to drain condensate` rom partition extending across said section dil"'to support the dephlegmator on the still viding it into upper and lower chambers,` column, a partition extending transversely 20 a de hlegmator bypass pipe opening into of said section digiding it into upper and i the ephlegmator outlet, and two pipes conlower chambers, a valved bypass opening 5 nected with the dephlegmator bypass and into the dephlegmator outlet beyond its communicating respectively ,with the upper valveland two connections from-the bypass and lower chambers in the removable seccommunicating respectively with the upper 25 tion, whereby the vapors may be led either and lower `chambers of the removable secaround the partition into the. dephlegmator tion, the connection to the upper chamber 10 or to the dephlegmator bypass entirely being 4provided with a valve, whereby the around the dephlegmator, substantially as vapors from the still column` may be condescribed. ducted either through the dephle mater or 30 5. A distillation apparatus comprising a around the dephlegmator throng the bystill column, a dephlegmator provided with pass, substantially as described. 15 means for circulating a cooling medium In testimony whereof, I have hereunto set therethrough, a valved outlet for the demy hand. phlegmator, a removable section between the still column and dephlegnator and serving RAYMOND M. KELLY.

partition extending across said section dividing it into upper and lower chambers, a de hlegmator bypass pipe opening into 4, the r ephlegmator outlet, and two pipes connected with thc dephlegmutor bypass and communicating respectively with the upper and lower chambers in the removable section, whereby the vapors may be led either around the partition into thev dephlegmator or to the dephlegmator bypass entirely around the dephlegmator, substantially as described.

5. A distillation apparatus comprising a still column, a dephlegmator provided with means for circulating a cooling medium therethrough, a valved outlet for the dephlegmator, a removable section between the still column and dephlegmator and serving Certieate of It is hereby improvement in fDistillation Ap mths, reqmrmg correction as `tolrloiitif y ducted either through the dephle mator or 1 around the dephlegmator throng pass, substantially as described.

In testimony whereof, I have hereunto set my hand.

the by- RAYMOND M KELLY.

Correction.

A certied that in LettersrPatent N 1 41 upon the application of IReymond M.' Kelly, o 5 927, anted June 9 1925 errors appear in the printed s cicat' age 1, line 16, after the word still Pi mn of Pittsburgh., ennsylvania, for nn 'nsert the words mfvzng a fractiomt'ng column; pa Ye 2, line 39, before the word column insert the word still; and that the seid correctwns therein that the Patent Oice.

tters Patent should be read with these same may conform the record of the case in the Signed and sealed this 7th day of July, A. D, 1925.

WMrA. KINNAN, Actmg 'ommim'tmer of Patents..

Y improvement in DistllationAp mths, errors appear in Certilcate of Correction.

It is hereby ccrtied that in Letters Pa,tent No. 1,541,227, 'nted June 9, 1925, upon the application of Raymond 4M.' Kelly, of Pittsburggd,trl ennsylvania, for an e printed s ecifcation requiring correction as foljo i' vage 1, line 16, after the word still insert the words having a fractz'oat'ng column; pa e 2, line 39, before the word column insert the word still; and that the said tters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oice. i Y

Signed and 'sealed this 7th day of July, A. D. 1925.

- [we] WMA. KINNAN,

ctng Commissioner of Patents.. 

